Beyoncé’s children might not go into the entertainment business. The 43-year-old superstar has daughter Blue Ivy, 12, – who will make her film debut in ‘Mufasa: The Lion King’ – as well as seven-year-old twins Rumi and Sir with her husband Jay-Z but now her mother Tina Knowles, 70, has insisted that it is too soon to tell whether any of them will actually follow in their mother’s footsteps. She told ‘Entertainment Tonight’: “No. You know, We’ll see, they’re very young. We don’t know what direction they’re gonna go in. They might be the president! Blue Ivy is very smart, and very artistic, so w…